Tack puller and lifter for lasted shoes.



PATENTED JULY 2, 1 907.

0.1". PYM. TACK PULLER AND LIPTER PoR LASTBD SHOES.v

APPLICATION FILED AUG. ll 1906.

2 SHEETS-SHEET 1.

.PATBNTED '111112. 1907.-

' 0.P.PYM.

i TACK PULLER AND LIPTBR PoR LASTED SHOES.,

APPLICATION FILEDv AUG-.1, 1906.

z SHEETS-SHEET' z'.

UNTTED STATES PATENT oEEIoE.

CHARLES F. PYM, OF ESSEX, ONTARIO, CANADA, ASSIGNOR OF ONE-HALF TO KRENTLER- BROTHERS COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF. MICHIGAN.

TACK FULLER AND LIFTER FORl LASTED SHOES.

Y No. 859,107.

tion, in connection with the accompanying drawings,l

is a'specication, like letteis Gn the drawings representing like parts.

My invention is a machine for preparing a lasted shoe for the sewing operation. 'Such a shoe has the shoe upper drawn tightly over the last and tacked down closely in order tohold the stretched leather in The tacks, however, are in the place until it has set. e way of the` needle of the sewing machine, so that it has heretofore been customary for the operator to draw out the tacks, usuallyby hand, 'and as he progressed in drawing the tacks he has usuallydriven in here and there a stay tack to hold the* upper in place with relation tc the innersole on the last, about four such stay tacks being usually driven in. This drawing of lasting tacks and `driving of stay tacks is laborious and objectionable, the operator usually carrying the lasting tacks in his mouth, which is thereby lacerated,-and also the work is quite fatiguing, 4and is a-job which workmen dislike. Accordingly in my inventionl do laway with the stay tacks altogether. I provide mechanism for drawing out those tacks.- which are unnecessaryand simply lifting such tacks as should remain for staying purposes, the lifted tacks taking the place ofthe previously used stay tacks and being merely lifted suiiciently so as not t0 interfere with the sewing operation.- I provide a channel opener, which also serves as a workrest, .and adjacent thereto I provide a knife or ledge which coperates with a rapidly reciprocating trimming knife, which operates to trim the projecting edge of the leather as the tacks are being pulled, thereby preparing the shoe to the best advantage for being sewed.

The constructional details of myinvention. will be pointed out more at length in the courseof the following description taken in connection with the accompanying drawings, in which I have shown apreferred embodiment of the invention. -f

In the drawings, Figure 1 represents in side elevation a sucien't portion of my machine to make my invention readily ,understood Fig. 2'is a top vplan view thereof; Figs. 3' and 4 are transverse sectional views .on

the lines 3-3 and `4--4,`Fig. 2, showing-details of con! struction; Fig. 5 isan enlarged fragmentary view inl side elevation, at the tack pulling and lifting region of the'machine; and 6 is an enlarged fragmentary sectional view of thesame region, showing the tack-engsging claws and trimming knives in topp plan and in"- l Specification of Letters Patent.

' Application led August 1,1906'. Serial No. 328,690.

pulley 6 and the latter having guides 7, 8*, 9, for a recip- Patented July 2, 197,.

rocating knife carrier 10 and carriers 11, 12, to `which *I are secured at their forward ends a 'pulling claw 13 and lifting claraY 14, a trimming knife l5 being fast on the soV carrier lO. As herein shown, the ,carriers 11,;12, are V.

operated by cams 16, 17, on the shaft 5 and the trimrier l0 of the knife, although I wish it understood that I have connected the parts in this waymerely as a preferable construction, but do not intend toglimit myself 'p thereto, inasmuch as each reciprocating part may have its own cam or other actuator and may be driven at the same lor different relative speed from that shown. The

Y carrier 11 is supported at its forward end by a pivot link or arm 19, while a similar arm 20 supports the carrier l2, being set preferably back nearer the main drive shaft 5 than thelnk 19, so'as to cause the puller 13 to have a greater upwardswing or movement at Vitsfront or claw end.` I have made the discovery that a reciprocating sharp claw willA pull out tacks completely,

while a claw that is dull, going with the same rapidity,i y

will only partly pull the tacks,` and accordingly vit will be seen, viewing Fig. 5 more particularly, that I have made the claw 14 dull or blunt, and have made the claw 13 sharp. To still ,further place those tacks which' i are merely lifted in the best positionfor the conven'- ience of the operator during the sewing operation, I

have provided a controlling device for the tack which` is only partly pulled, that will prevent its being raised' above a desired height, said device being herein shown as a post 21 having a hollowed lower end with' a pro-l jecting lip 22 whose inner surface curves angularly, as shown clearly in Fig. 5, thereby cooperating with the lifting claw 14 to deiiect or bend the head of the lifted tack inwardly or toward the channel, and hence away from interference with the sewing machine. j

As already noted, the path of movement or lift `of the tack lifter is smaller or less than that of the tack puller, so that the movement of the lifter serves merely to raise the tacks against the controller 21, which retards the front edges of the heads of the tacks as the A lifter or claw 14 gives a final up-lift to the back-edges l l i of the heade, and then draws back', the result being that the tacks are bent over as shownin Figs. 5 and 6.v

The combined action" stops, their lentire withdrawal i just as the lifter backs wholly' away from them.'` VTo still further position or `controlfthe partial withdrawal)` of the tacks, I provide avworkrest 'in the form 0f 'a a considerable surface of the inner soleiof the shoe being lasted, so as to holdthe sama positively against improper moveineiitrfsaid 4lower end `of therest carry;

loo

ing a channel opener in the form of a projecting prong or finger 28. Mounted .on this rest arm or hold-fast v 23 is a cutter blade or plate 29v pivoted thereto at 30 and adjustably secured 'at 31 s'o as to have its forward cutting edge 32 swing accurately up or down to coperate exactly with the cutting point o'the trimmer knife 15 as thelatter reciprocates rapidly during the progress of the Work. A

It will be understood .thatl have purposely omitted various details of construction so as to present my machine in the simplest form possible. The guides 9 serve to take up side-play and to hold the carriers l1, 12 in accurate alinement, as will'be clearly evident viewing Fig. 4. Viewing Fig. 3, it will be seen that the suspending links for said carriers are arranged in double pairs, pivoted to the opposite sidesof the carriers, as by bolts 33, 34, which secure the links 20 to a laterally overhanging neck or portion 37 of the bracket 4.

In use, the operator manipulates, the shoe in the usual way against the workrest or hold-fast 23, so as t0 permit the constantly-and rapidly reciprocating tack puller 13 to pull all the tacks which he considers itadvisable to pull, and so as to bring the lifting claw 14 into engagement with such tacks here and there as he deems it advisable to lil't merely, so as to leave them in their lifted and bent-over condition to operate in place of the usual stay tacks which have heretotore been employed. The tack lifter. claw engages the shoe near or against the channel lip, and because lof its downwardly bent, dull end, thc operator can easily manipillatr-y the slioe so as to readily lift deep-set tacks at will, orille can so hold the shoe as to. bring the claw 13 into engagement with the tack and' thereby entirely pull the tack, meanwhile so regulating the position of the shoe as to cause the projecting edge f 'i the upper to be trimmed either close or long, as desired. In some cases it is desirable to have the tack puller move more rapidly than the tack lifter, and it will also be understood that the orbit of movement may readily be changed by correspondingly shifting the links or in any other way shortening the leverage of one or the other of the claw carriers. Ii the operator wishes the tacks lifted more or less he'regulates it by adjusting the workrest, and can vary to a slight extent -the position into which the tack is bent, by turningand adjusting the control or stop 2l.

It will be understood that I am not 'limited to the consti-notional details herein shown, as I consider my invention broadly new invhaving entirely eliminated the necessity of using separate stay tacks. `By this means I have succeeded in providing means/forfaccomplishing entirely by an automatic power machine the results which have hitherto been accomplished by hand. In order to accomplish this result I have done away with the entire withdrawal of all the tacks and the insertion of stay tacks, and instead thereof I withdraw only such tacks as can be readily dispensed with, and the'remaining tacks I put in such. position that they do not interfere with the subsequent sewing oi the shoe. I regard my invention as broadly novel in the provision of means for accomplishing this result.

Therefore I intend to include within the terms of my broader claims any and all forms oi tack lifting means and any and all forms of tack pulling means, etc. I n

-have timed the parts so that the knii'ecuts the upper just before the lifter raises 'a tack and hence the upper is still held fast while being cut, and hence the shoe Y Having described my invention, What I claim asl new and desire to secure by Letters Patent, is,

1. In a machine of the kind described, power driven means for engaging a tack, and actuating means therefor, said engaging means and its actuating means being constructed and arranged ,to lift the tack only partially from the shoe.

2. In a machine of the kind described, a work rest for controlling the height of a lasted shoe, a rapidly operating tack puller for pulling lasting tacks from the upper,and tack lifting means operating only to partially remove certain of the tacks from the shoe, said tack puller and tack lifting means being constructed and arranged to coperate close to each other progressively. togethernbout the periphery of the shoe as the shoe is moved along said work rest, and common actuating means for said two tack engaging devi:es.

3. In a machine'of the kind described, the combination with rapidly operating tack pulling mechanism, of tack lifting mechanism, and a common actuating means for both of the tuck engaging devices, including means for moving the said lifting mechanism. a less vertical effective distance than the pulling movement of said tack pulling mechanism, said'tack puller and tack lifting means being constructed and arranged to coperate close to each other progressively together about the periphery of the shoe as the shoe is moved along said work rest.

4. In a machine of the kind described, the combination v otally manipulated thereon with relation to the herein after mentioned two tack-dislodging;devices, of two tackdislodging'devices located close to and opposite said .work rest arranged to operate close to e'ach other progressively `along the same line of tacks, and operating mechanisms for said two devices, including means for transmitting to one of said devices a short tack-moving movement and means for transmitting to the other of said devices a longer tack-moving movement. l

5.` In a machine of the kind described, the combination of two tack-dislodging devices arranged to operate close to each other along the same line of tacks, one of said devices consisting of a dull edged claw, and operating mechanisms for merely to lift but not remove certain oi the tacks and for actuating said otherdevice to remove the remaining Atacks.

G. ln a machine of the kind described, the combination of a tack lifter, power actuating means therefor, and cooperating means for causing said lifter to bend or deflect a tack from its normal position and to release the tack when only partially withdrawn.

7. In a machine oi' the kind described, the combination actuating said dull edged claw suliiciently.

with a tack lifter, and actuating means therefor, of means l for stopping moved from the shoe.

S. In -a machine of the kind described, the combination with a tack lifter and power actuating means therefor ofA the withdrawal of.a tack when partially rea controlling device for limiti-ng the extent of removal of the tack hy said tack lifter.

D. In a machine of the kind described, the.. combination with a tack lifter and power actuating means therefor of a controlling device for limiting the extent of,removal of the tack by said tack lifter, said controlling device having l a dcecting surface for cooperating with said tack lifter tobend'the head of the tack laterally vin the shoe.

10. In a machine of the kind described, the combination with means for pulling 'tacks from a lasted shoe, of a work rest adapted to occupy the innersole channel adjacent said pulling means, provided with a stationary cutting edge,

and a reciprocating cutter operated to reciprocate in u'nlson with said tack pulling means to trim the upper against the cutting edge of said workrest.

1l. In a machine of the kind described, the comblim'tony with a continuously operated tack lifter, of a work rest provided at its engaging end with e, channel opener prong the shoe for the sewing machine by lpractically a single against which the operator can pivot the shoe at its chanmanipulation, and operating mechanism for operating salti nei, und means arranged opposite .said prong to operate in two devices.

opposition to said tack iiftcr, to engage the npwardiy mov- In testimony whereof, I have signed my name to this 5 ing tack :md stop the vertical movement of the tack. specification, in the presence of two subscribing Witnesses. l5

12. In a machine ofl the kind described, the combination of two tack moving devices in operative proximity, con CHARLES F PYM- structed and arranged to enable the operator, at will, and Witnesses: in the normal progress of the work, either to remove or STELLA KARRER, lO partially lift tacks as his-judgment determines, to prepare AGNES M. KA1RER.- 

